The speed of sound at room temperature is approximately 343 meters per second (m/s) or 767 miles per hour (mph).

Here's why it's an approximation:

* Room temperature isn't a precise value. It typically refers to a range between 20°C and 25°C (68°F to 77°F).

* The speed of sound changes with temperature. It increases as temperature rises.

For more accurate calculations, you would need to know the exact temperature and use the following formula:

Speed of sound (m/s) = 331.5 + 0.606 * T

Where T is the temperature in degrees Celsius.